18751005

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 42282240

約数和(自身を除く): 23531235

約数列:

[1, 3, 5, 7, 9, 13, 15, 19, 21, 35, 39, 45, 57, 63, 65, 91, 95, 105, 117, 133, 171, 195, 241, 247, 273, 285, 315, 399, 455, 585, 665, 723, 741, 819, 855, 1197, 1205, 1235, 1365, 1687, 1729, 1995, 2169, 2223, 3133, 3615, 3705, 4095, 4579, 5061, 5187, 5985, 8435, 8645, 9399, 10845, 11115, 13737, 15183, 15561, 15665, 21931, 22895, 25305, 25935, 28197, 32053, 41211, 46995, 59527, 65793, 68685, 75915, 77805, 96159, 109655, 140985, 160265, 178581, 197379, 206055, 288477, 297635, 328965, 416689, 480795, 535743, 892905, 986895, 1250067, 1442385, 2083445, 2678715, 3750201, 6250335, 18751005]

約数ペア:

[(1, 18751005), (3, 6250335), (5, 3750201), (7, 2678715), (9, 2083445), (13, 1442385), (15, 1250067), (19, 986895), (21, 892905), (35, 535743), (39, 480795), (45, 416689), (57, 328965), (63, 297635), (65, 288477), (91, 206055), (95, 197379), (105, 178581), (117, 160265), (133, 140985), (171, 109655), (195, 96159), (241, 77805), (247, 75915), (273, 68685), (285, 65793), (315, 59527), (399, 46995), (455, 41211), (585, 32053), (665, 28197), (723, 25935), (741, 25305), (819, 22895), (855, 21931), (1197, 15665), (1205, 15561), (1235, 15183), (1365, 13737), (1687, 11115), (1729, 10845), (1995, 9399), (2169, 8645), (2223, 8435), (3133, 5985), (3615, 5187), (3705, 5061), (4095, 4579)]